Polycom RealPresence 4000 Administrator's Manual page 271

Method II
Depending on the dialing direction, the following procedures must be performed:
Table 5-4
Dialing
Direction
MGC to RMX
RMX to MGC
Setting Flags on the RMX
When running conferences in mixed environment (RMX and MGC) there may be small
differences between the line rates each MCU is sending. In the RMX, several flags must be
set to ensure that these differences will not cause the cascaded link to connect as Secondary
and that Content flows correctly between the cascaded conferences. This procedure is
performed once per RMX.
To modify the flags:
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Polycom, Inc.
Set up Procedures according to the Dialing Direction
MGC Level 1
Set the appropriate flags (done once
only).
Define the conference setting and
its line rate to be the same as the
one set on the RMX.
Define the dial-out participant
(Cascaded Link) to the conference
running on the RMX.
Set the appropriate flags (done once
only)
Define the cascade-enabled Entry
Queue.
Define the conference setting and
its line rate to be the same as the
one set on the RMX.
In the RMX Web Client menu, click Setup>System Configuration.
In the System Flags dialog box, add the following new flags and values:
— MIX_LINK_ENVIRONMENT=YES
Setting this flag to YES will adjust the line rate of HD Video Switching conferences
run on the RealPresence Collaboration Server (RMX) 1500/2000/4000 from 1920Kbps
to 17897Kbps to match the actual rate of the HD Video Switching conference
running on the MGC. In such case, the conference can include IP and ISDN
participants.
— IP_ ENVIRONMENT_LINK=NO
Setting this flag to YES will adjust the line rate of HD Video Switching conferences
Chapter 5-Cascading Conferences
RealPresence Collaboration Server
(RMX) 1500/2000/4000
Level 2
Set the appropriate flags (done once
only).
Define the cascade-enabled Entry
Queue, setting it as Slave.
Define the conference setting and its line
rate to be the same as the one set on the
MGC.
Set the appropriate flags (done once
only)
Define the conference setting and its line
rate to be the same as the one set on the
MGC.
Define the dial-out participant (Cascaded
Link) to the conference running on the
MGC, setting the participant Cascade
parameter to Slave.
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